15 sec in total
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345 ms
Visit byhead.com now to see the best up-to-date BYHEAD content and also check out these interesting facts you probably never knew about byhead.com
ByHEAD is founded by China HEAD Aerospace Technology Co.in 2015. The objective is to assist the world aerospace for mutual cooperation, especially within the Micro and Nano satellite field.mail:byhead...
Visit byhead.comWe analyzed Byhead.com page load time and found that the first response time was 1.9 sec and then it took 13.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
byhead.com performance score
name
value
score
weighting
Value2.6 s
64/100
10%
Value3.1 s
74/100
25%
Value9.3 s
13/100
10%
Value750 ms
39/100
30%
Value0.096
90/100
15%
Value5.1 s
76/100
10%
1854 ms
674 ms
870 ms
428 ms
2784 ms
Our browser made a total of 189 requests to load all elements on the main page. We found that 91% of them (172 requests) were addressed to the original Byhead.com, 5% (9 requests) were made to Bdimg.share.baidu.com and 2% (3 requests) were made to Static.soperson.com. The less responsive or slowest element that took the longest time to load (4.5 sec) belongs to the original domain Byhead.com.
Page size can be reduced by 891.4 kB (19%)
4.7 MB
3.8 MB
In fact, the total size of Byhead.com main page is 4.7 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 50% of websites need less resources to load. Images take 4.3 MB which makes up the majority of the site volume.
Potential reduce by 103.0 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 39.2 kB, which is 35% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 103.0 kB or 91% of the original size.
Potential reduce by 635.6 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, BYHEAD needs image optimization as it can save up to 635.6 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 101.0 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 101.0 kB or 53% of the original size.
Potential reduce by 51.7 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Byhead.com needs all CSS files to be minified and compressed as it can save up to 51.7 kB or 81% of the original size.
Number of requests can be reduced by 11 (6%)
187
176
The browser has sent 187 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BYHEAD. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.
byhead.com
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byhead.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
[id] attributes on active, focusable elements are not unique
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
byhead.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
byhead.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Byhead.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Byhead.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
byhead.com
Open Graph description is not detected on the main page of BYHEAD. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: